/* === RESET & VARIABLES === */
  *,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
  :root{
    --navy:#0D1B2A;--navy2:#0f2236;--blue:#0066FF;--cyan:#00C2FF;
    --light:#F4F6F9;--muted:#8a9bb0;--white:#fff;--card:#111f30;--border:#1e3048;
  }
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{font-family:'DM Sans',system-ui,sans-serif;background:var(--navy);color:var(--white);overflow-x:hidden;line-height:1.6;}
  img,svg{max-width:100%;height:auto;display:block;}
  a{color:inherit;}

  /* === SKIP LINK (Accessibility + Lighthouse) === */
  .skip-link{position:absolute;top:-999px;left:0;background:var(--blue);color:#fff;padding:8px 16px;border-radius:0 0 8px 0;font-weight:700;z-index:10000;text-decoration:none;}
  .skip-link:focus{top:0;}

  /* === NAV === */
  nav{position:fixed;top:0;left:0;right:0;z-index:999;padding:18px 60px;display:flex;align-items:center;justify-content:space-between;transition:background .3s,padding .3s;}
  nav.scrolled{background:rgba(13,27,42,.97);backdrop-filter:blur(12px);padding:13px 60px;border-bottom:1px solid var(--border);}
  .nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none;}
  .nav-brand{font-family:'Sora',sans-serif;font-size:1.05rem;font-weight:700;color:var(--white);}
  .nav-brand span{color:var(--cyan);}
  .nav-links{display:flex;gap:34px;list-style:none;}
  .nav-links a{color:var(--muted);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s;}
  .nav-links a:hover,.nav-links a:focus{color:var(--white);}
  .nav-cta{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;border:none;padding:5px 24px;border-radius:6px;font-family:'Sora',sans-serif;font-size:.85rem;font-weight:700;cursor:pointer;transition:opacity .2s;text-decoration:none;}
  .nav-cta:hover,.nav-cta:focus{opacity:.85;}

  /* === HERO === */
  #hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;text-align:center;}
  canvas#particles{position:absolute;inset:0;z-index:0;pointer-events:none;}
  .hero-content{position:relative;z-index:1;max-width:780px;padding:100px 24px 60px;}
  .hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,194,255,.08);border:1px solid rgba(0,194,255,.2);color:var(--cyan);padding:8px 18px;border-radius:50px;font-size:.78rem;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:28px;}
  .hero-badge-dot{width:6px;height:6px;background:var(--cyan);border-radius:50%;animation:pulse 1.8s infinite;}
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.4;transform:scale(1.5);}}
  h1.hero-title{font-family:'Sora',sans-serif;font-size:clamp(2.2rem,5vw,3.8rem);font-weight:800;line-height:1.15;margin-bottom:20px;}
  .grad{background:linear-gradient(135deg,var(--blue),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
  .hero-sub{font-size:1.05rem;color:var(--muted);line-height:1.75;max-width:560px;margin:0 auto 36px;}
  .hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
  .btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;padding:14px 32px;border-radius:8px;font-family:'Sora',sans-serif;font-weight:700;font-size:.95rem;text-decoration:none;display:inline-block;box-shadow:0 4px 24px rgba(0,102,255,.3);transition:transform .2s,box-shadow .2s;}
  .btn-primary:hover,.btn-primary:focus{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,102,255,.45);}
  .btn-outline{border:1.5px solid var(--border);color:var(--white);padding:14px 32px;border-radius:8px;font-family:'Sora',sans-serif;font-weight:600;font-size:.95rem;text-decoration:none;display:inline-block;transition:border-color .2s,background .2s;}
  .btn-outline:hover,.btn-outline:focus{border-color:var(--cyan);background:rgba(0,194,255,.05);}

  /* === SECTIONS === */
  section{padding:96px 60px;}
  .section-label{font-size:.72rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:var(--cyan);margin-bottom:10px;}
  h2.section-title{font-family:'Sora',sans-serif;font-size:clamp(1.7rem,3vw,2.5rem);font-weight:800;margin-bottom:14px;line-height:1.2;}
  .section-sub{color:var(--muted);font-size:.98rem;line-height:1.75;max-width:540px;}
  .section-divider{width:48px;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:2px;margin:18px 0;}

  /* === ABOUT === */
  #about{background:var(--navy2);}
  .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;max-width:1100px;margin:0 auto;}
  .about-text .section-sub{max-width:100%;}
  .about-text p{color:var(--muted);line-height:1.8;margin-bottom:14px;}
  .about-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
  .stat-box{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:22px;transition:border-color .2s;}
  .stat-box:hover{border-color:var(--cyan);}
  .stat-num{font-family:'Sora',sans-serif;font-size:1.9rem;font-weight:800;background:linear-gradient(135deg,var(--blue),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
  .stat-label{color:var(--muted);font-size:.82rem;margin-top:3px;}
  .about-visual{display:flex;align-items:center;justify-content:center;}
  .about-ring{width:300px;height:300px;border-radius:50%;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;position:relative;}
  .about-ring::before{content:'';position:absolute;inset:-16px;border-radius:50%;border:1px dashed rgba(0,194,255,.2);}
  .about-ring-inner{width:210px;height:210px;border-radius:50%;background:linear-gradient(135deg,rgba(0,102,255,.15),rgba(0,194,255,.08));border:1px solid rgba(0,194,255,.2);display:flex;align-items:center;justify-content:center;}
  .about-logo-big{font-family:'Sora',sans-serif;font-size:3.8rem;font-weight:800;background:linear-gradient(135deg,var(--blue),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}

  /* === SERVICES === */
  #services{background:var(--navy);}
  .services-header{text-align:center;margin-bottom:56px;}
  .services-header .section-sub,.services-header .section-divider{margin-left:auto;margin-right:auto;}
  .services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:1000px;margin:0 auto;}
  .service-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:34px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s;}
  .service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan));opacity:0;transition:opacity .3s;}
  .service-card:hover,.service-card:focus-within{transform:translateY(-5px);border-color:rgba(0,194,255,.3);box-shadow:0 14px 44px rgba(0,102,255,.14);}
  .service-card:hover::before,.service-card:focus-within::before{opacity:1;}
  .service-icon{width:52px;height:52px;background:linear-gradient(135deg,rgba(0,102,255,.15),rgba(0,194,255,.1));border:1px solid rgba(0,194,255,.2);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:22px;font-size:1.4rem;}
  h3.service-title{font-family:'Sora',sans-serif;font-size:1.1rem;font-weight:700;margin-bottom:10px;}
  .service-desc{color:var(--muted);font-size:.88rem;line-height:1.7;}
  .service-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px;}
  .tag{background:rgba(0,102,255,.1);border:1px solid rgba(0,102,255,.2);color:var(--cyan);font-size:.7rem;padding:4px 11px;border-radius:50px;font-weight:500;}

  /* === WHY US === */
  #why{background:var(--navy2);}
  .why-header{text-align:center;margin-bottom:56px;}
  .why-header .section-divider{margin:18px auto;}
  .why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;max-width:1100px;margin:0 auto;}
  .why-card{text-align:center;padding:34px 22px;background:var(--card);border:1px solid var(--border);border-radius:16px;transition:transform .3s,border-color .3s;}
  .why-card:hover{transform:translateY(-4px);border-color:var(--cyan);}
  .why-num{font-family:'Sora',sans-serif;font-size:2.6rem;font-weight:800;background:linear-gradient(135deg,var(--blue),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:4px;}
  h3.why-title{font-family:'Sora',sans-serif;font-size:1rem;font-weight:700;margin-bottom:9px;}
  .why-desc{color:var(--muted);font-size:.84rem;line-height:1.65;}

  /* === INDUSTRIES === */
  #industries{background:var(--navy);}
  .industries-header{text-align:center;margin-bottom:56px;}
  .industries-header .section-divider{margin:18px auto;}
  .industries-header .section-sub{margin:0 auto;}
  .industries-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1000px;margin:0 auto;}
  .ind-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:26px 22px;display:flex;align-items:center;gap:14px;transition:border-color .3s,transform .3s;}
  .ind-card:hover{border-color:var(--cyan);transform:translateX(4px);}
  .ind-icon{font-size:1.7rem;flex-shrink:0;line-height:1;}
  h3.ind-name{font-family:'Sora',sans-serif;font-weight:600;font-size:.92rem;}
  .ind-sub{color:var(--muted);font-size:.78rem;margin-top:2px;}

  /* === CONTACT === */
  #contact{background:var(--navy2);}
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;max-width:1000px;margin:0 auto;}
  .contact-info p{color:var(--muted);line-height:1.8;margin-bottom:30px;}
  .contact-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:22px;}
  .contact-item-icon{width:42px;height:42px;background:linear-gradient(135deg,rgba(0,102,255,.15),rgba(0,194,255,.1));border:1px solid rgba(0,194,255,.2);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;}
  .contact-item-text strong{display:block;font-family:'Sora',sans-serif;font-size:.82rem;font-weight:700;margin-bottom:1px;}
  .contact-item-text span{color:var(--muted);font-size:.86rem;}
  .contact-form-box{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:34px;}
  .form-group{margin-bottom:18px;}
  .form-group label{display:block;font-size:.78rem;font-weight:700;color:var(--muted);letter-spacing:.6px;text-transform:uppercase;margin-bottom:7px;}
  .form-group input,.form-group textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:8px;color:var(--white);font-family:'DM Sans',sans-serif;font-size:.93rem;padding:11px 15px;outline:none;transition:border-color .2s;}
  .form-group input:focus,.form-group textarea:focus{border-color:var(--cyan);}
  .form-group textarea{min-height:110px;resize:vertical;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .btn-submit{width:100%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;border:none;padding:14px;border-radius:8px;font-family:'Sora',sans-serif;font-size:.93rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .2s;}
  .btn-submit:hover,.btn-submit:focus{opacity:.88;transform:translateY(-1px);}
  .social-links{display:flex;gap:10px;margin-top:24px;}
  .social-btn{width:38px;height:38px;background:var(--card);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--muted);text-decoration:none;font-size:.88rem;transition:border-color .2s,color .2s;font-weight:700;}
  .social-btn:hover,.social-btn:focus{border-color:var(--cyan);color:var(--cyan);}

  /* === FOOTER === */
  footer{background:#080f18;padding:56px 60px 28px;border-top:1px solid var(--border);}
  .footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:56px;margin-bottom:44px;}
  .footer-brand p{color:var(--muted);font-size:.88rem;line-height:1.75;margin-top:14px;max-width:280px;}
  .footer-logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
  .footer-logo-text{font-family:'Sora',sans-serif;font-size:.98rem;font-weight:700;color:var(--white);}
  .footer-logo-text span{color:var(--cyan);}
  .footer-col h4{font-family:'Sora',sans-serif;font-size:.78rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:18px;}
  .footer-col ul{list-style:none;}
  .footer-col ul li{margin-bottom:11px;}
  .footer-col ul li a{color:var(--muted);text-decoration:none;font-size:.86rem;transition:color .2s;}
  .footer-col ul li a:hover,.footer-col ul li a:focus{color:var(--cyan);}
  .footer-bottom{border-top:1px solid var(--border);padding-top:22px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;}
  .footer-bottom p{color:var(--muted);font-size:.8rem;}

  /* === ANIMATIONS === */
  .fade-up{opacity:0;transform:translateY(28px);transition:opacity .55s ease,transform .55s ease;}
  .fade-up.visible{opacity:1;transform:none;}

  /* === ACCESSIBILITY: focus outline === */
  :focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}

  /* === RESPONSIVE === */
  @media(max-width:900px){
    nav,nav.scrolled{padding:13px 20px;}
    section{padding:72px 20px;}
    .about-grid,.contact-grid{grid-template-columns:1fr;gap:44px;}
    .about-visual{display:none;}
    .services-grid{grid-template-columns:1fr;}
    .why-grid{grid-template-columns:repeat(2,1fr);}
    .industries-grid{grid-template-columns:repeat(2,1fr);}
    .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
    .nav-links{display:none;}
    .form-row{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;text-align:center;}
  }
  @media(max-width:480px){
    .industries-grid{grid-template-columns:1fr;}
    .why-grid{grid-template-columns:1fr;}
    .about-stats{grid-template-columns:1fr 1fr;}
  }